_GL_HAS_BUILTIN_MUL_OVERFLOW  245 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_MUL_OVERFLOW 0
_GL_HAS_BUILTIN_MUL_OVERFLOW  247 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_MUL_OVERFLOW _GL_HAS_BUILTIN_ADD_OVERFLOW